/**
 * HTTP 请求工具
 */
export interface HttpResponse<T = unknown> {
    data: T;
    status: number;
    statusText: string;
    headers: Record<string, string>;
    url: string;
}
export declare class HttpError<T = unknown> extends Error {
    response: HttpResponse<T>;
    constructor(response: HttpResponse<T>);
}
export declare class YouzanApiError<T = unknown> extends Error {
    response: HttpResponse<T>;
    constructor(response: HttpResponse<T>);
}
/**
 * 发起 POST 请求
 *
 * @param url 支持绝对路径、相对路径
 * @param params POST 参数
 */
export declare function post<T = unknown>(url: string, params?: Record<string, unknown>): Promise<HttpResponse<T>>;
/**
 * 发起上传文件请求
 *
 * @param url 支持绝对路径、相对路径
 * @param files 上传文件参数，支持 Map 或 Object。示例: {"image": "/path/to/filename.jpg"}
 */
export declare function upload<T = unknown>(url: string, files: Map<string, string> | Record<string, string>): Promise<HttpResponse<T>>;
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